Editing WoW:Earth (AddOn)/Using earth to create a QuestLog (section)

== Displaying the Quest List == 
Hey, that wasn't so bad! Just a couple of loops. We've saved a lot of frustration from our user's end, too! Okay, so now we have a fancy function to get all of the quests for the current player. Let's use this instead of our dummy data. 

 function PartyQuests_Frame_OnLoad()	
 	local ebf = getglobal(this:GetName().."Tree".."ExpandButtonFrame");
 	ebf:SetPoint("TOPLEFT", ebf:GetParent():GetName(), "TOPLEFT", 50, 1); 
  
 	getglobal(this:GetName().."ExitButton"):Hide();
 	getglobal(this:GetName().."TitleText"):SetText(PARTYQUESTS_TITLE_TEXT);
  
 	''local questTree =  PartyQuests_GetPlayerQuestTree();''
 	EarthTree_LoadTable(
 		getglobal(this:GetName().."Tree"),
 		questTree,
 		{ onClick = function(a) Sea.io.printTable(a); end; }
 	);
 	EarthTree_UpdateFrame(
 		getglobal(this:GetName().."Tree")
 	); 
 end

;Ick!! What's this? The questTree didn't load? Oh no! What happened? 
: A) The quest log isn't always available OnLoad, so we need to wait for a bit before getting the info. 

We'll do this by moving all of the update code into another function: 

 function PartyQuests_LoadGui ()
 	local frame = PartyQuestsFrame;
 	local tree = PartyQuests_GetPlayerQuestTree();
 	
 	-- Load up the data
 	EarthTree_LoadTable(
 		getglobal(frame:GetName().."Tree"), 
 		eTree
 		); 
 
 	-- Draw the data
 	EarthTree_UpdateFrame(
 		getglobal(frame:GetName().."Tree")
 		); 
 end

[[Image:Earth_tutorial_1.jpg|thumb|A table-accurate parsing of the data]]

Then we'll add something to the PartyQuests_Frame_OnLoad() function:

 -- Event Handlers --
 function PartyQuests_Frame_OnLoad()
 	''Chronos.afterInit(PartyQuests_LoadGui);''
 	
 	local ebf = getglobal(this:GetName().."Tree".."ExpandButtonFrame");
 	ebf:SetPoint("TOPLEFT", ebf:GetParent():GetName(), "TOPLEFT", 50, 1);
 
 	getglobal(this:GetName().."ExitButton"):Hide();
 	getglobal(this:GetName().."TitleText"):SetText(PARTYQUESTS_TITLE_TEXT);
 end

[[Chronos.afterInit]] is a really nice tool, that lets us do something after the game-world has started. In our case, its populating our quest list and refreshing. Using code like this helps ensure we run into fewer errors, but we need to change all of the '''''this''''' references into '''''frame''''' references. 

So reload and you'll see that will cause the EarthTree to parse our tree by type, as well as create sublists for all of the members of this table. Check out the result!

Not bad, eh?